Thread: Discovery I Speedo

That's the trouble with intermittent problems like this - I'm sure it's always working when you leave the workshop.

They're a fairly simple system. There's a transducer at the transfer case for the signal & then it's just wiring up to the speedo head.

Does the odometer still work when the needle doesn't ?
If it does, it'll be in the speedo head.

The transducer would be my bet though if all the connections have been tested. An electrician should be able to hook up a LED test light to check the transducer though. See if he'll hook it up as close as possible to the transducer & then run it inside the car. While you're driving, you will be able to monitor the problem. If the light still works while your speedo doesn't, then the transducer's OK.

<span style="color:blue">dont the d1 discos have the cable drive with the famous angle drive.....?</span>

No Zook they dont
mine did this coupla years ago,used to jump then be ok for awhile then died . it was the transducer, $140 & 10 minutes later ,all fixed been fine eva since

Mine also did this a couple of times......
I just pulled the connector apart, and sprayed some WD-40 in it.

Since then it hasn't happened again.
I guess it could be a sign that the transducer is on it's way out.
If it happens again, I'll probably replace it...but $140 is still expensive. :roll:

Yep but a necessity

worried about this a couple of years ago---
has since stopped stopping

still wavers 5 kays around though :?

Does the odometer still work when the needle doesn't ?
If it does, it'll be in the speedo head.

When the speedo stops the odometer stops which from what you're saying would indicate the transducer is faulty. Given the diagnostic cost each time you visit a sparky I don't reckon $140 is that bad, especially when it comes away still faulty.

I'll follow through the transducer line - thanks for the advice Scouse.